The duo was detained at the Special Anti-Robbery Squad in Ikeja in connection with the robbery.
The police had charged the suspects held in connection with the robbery, including a personal assistant, gardener and laundryman to Magistrate Court 1, Ogba, for conspiracy, burglary, stealing and other related offences.
Nine persons, including two sons of MKO Abiola, have been in police custody after some gunmen on September 2, invaded the residence of the late businessman in Ikeja, and carted away some valuables.
While the two sons claimed their arrest was sequel to a complaint that was lodged by their step-mum, Adebisi Abiola, after the robbery incident, the step-mum said they were arrested owing to their unruly acts to the police officers during interrogation.
Also, the duo approached a Lagos State High Court in Ikeja for the enforcement of their fundamental rights and demanded N100 million as compensation.
However, the first daughter of late politician, Lola Abiola-Edewor, on Tuesday signed an undertaking with the police seeking the release on bail of her two brothers and their staff.
As at 3.30p.m.yesterday, she was sighted within the Nigeria Police Force premises trying to perfect the release documentation.
Their release was confirmed by their lawyer, Chief Mike Ozekhome as their bails were secured about 3:00p.m.